Binance Pizza Day (or Bitcoin Pizza Day) is celebrated on May 22nd each year to commemorate the first transaction in which Bitcoin was used to purchase a physical item, specifically 2 Bitcoins for a pizza! Binance celebrates this day as Binance Pizza Day as a form of promotion and education about cryptocurrencies and they celebrate it every year through pizza distribution events, competitions, and reminding people of Bitcoin's history and evolution. It is a famous historical event in the world of cryptocurrencies, being the first real purchase made using Bitcoin.